Candlestick Patterns

Evening Doji Star

Introduction

Create a new Evening Doji Star candlestick pattern to indicate the pattern's presence.

To view the implementation of this candlestick pattern, see the LEAN GitHub repository.

Using EveningDojiStar Indicator

To create an automatic indicators for EveningDojiStar, call the EveningDojiStar helper method from the QCAlgorithm class. The EveningDojiStar method creates a EveningDojiStar object, hooks it up for automatic updates, and returns it so you can used it in your algorithm. In most cases, you should call the helper method in the Initializeinitialize method.

public class EveningDojiStarAlgorithm : QCAlgorithm
{
    private Symbol _symbol;
    private EveningDojiStar _eveningdojistar;

    public override void Initialize()
    {
        _symbol = AddEquity("SPY", Resolution.Daily).Symbol;
        _eveningdojistar = CandlestickPatterns.EveningDojiStar(_symbol);
    }

    public override void OnData(Slice data)
    {
        if (_eveningdojistar.IsReady)
        {
            // The current value of _eveningdojistar is represented by itself (_eveningdojistar)
            // or _eveningdojistar.Current.Value
            Plot("EveningDojiStar", "eveningdojistar", _eveningdojistar);
            
        }
    }
}
class EveningDojiStarAlgorithm(QCAlgorithm):
    def Initialize(self) -> None:
        self._symbol = self.AddEquity("SPY", Resolution.Daily).Symbol
        self.eveningdojistar = self.CandlestickPatterns.EveningDojiStar(self.symbol)

    def on_data(self, slice: Slice) -> None:
        if self.eveningdojistar.IsReady:
            # The current value of self.eveningdojistar is represented by self.eveningdojistar.Current.Value
            self.plot("EveningDojiStar", "eveningdojistar", self.eveningdojistar.Current.Value)

The following reference table describes the EveningDojiStar method:

EveningDojiStar()1/1

            EveningDojiStar QuantConnect.Algorithm.CandlestickPatterns.EveningDojiStar (
    Symbol                                symbol,
    *Nullable<Decimal>              resolution,
    *Func<IBaseData, IBaseDataBar>  selector
   )

Creates a new EveningDojiStar pattern indicator. The indicator will be automatically updated on the given resolution.

If you don't provide a resolution, it defaults to the security resolution. If you provide a resolution, it must be greater than or equal to the resolution of the security. For instance, if you subscribe to hourly data for a security, you should update its indicator with data that spans 1 hour or longer.

For more information about the selector argument, see Alternative Price Fields.

For more information about plotting indicators, see Plotting Indicators.

You can manually create a EveningDojiStar indicator, so it doesn't automatically update. Manual indicators let you update their values with any data you choose.

Updating your indicator manually enables you to control when the indicator is updated and what data you use to update it. To manually update the indicator, call the Updateupdate method with a TradeBar. The indicator will only be ready after you prime it with enough data.

public class EveningDojiStarAlgorithm : QCAlgorithm
{
    private Symbol _symbol;
    private EveningDojiStar _eveningdojistar;

    public override void Initialize()
    {
        _symbol = AddEquity("SPY", Resolution.Daily).Symbol;
        _eveningdojistar = new EveningDojiStar();
    }

    public override void OnData(Slice data)
    {
        if (data.Bars.TryGetValue(_symbol, out var bar))
        {      
            _eveningdojistar.Update(bar);
        }
   
        if (_eveningdojistar.IsReady)
        {
            // The current value of _eveningdojistar is represented by itself (_eveningdojistar)
            // or _eveningdojistar.Current.Value
            Plot("EveningDojiStar", "eveningdojistar", _eveningdojistar);
            
        }
    }
}
class EveningDojiStarAlgorithm(QCAlgorithm):
    def Initialize(self) -> None:
        self._symbol = self.AddEquity("SPY", Resolution.Daily).Symbol
        self.eveningdojistar = EveningDojiStar()

    def on_data(self, slice: Slice) -> None:
        bar = slice.Bars.get(self.symbol)
        if bar:
            self.eveningdojistar.Update(bar)
        if self.eveningdojistar.IsReady:
            # The current value of self.eveningdojistar is represented by self.eveningdojistar.Current.Value
            self.plot("EveningDojiStar", "eveningdojistar", self.eveningdojistar.Current.Value)

To register a manual indicator for automatic updates with the security data, call the RegisterIndicator method.

public class EveningDojiStarAlgorithm : QCAlgorithm
{
    private Symbol _symbol;
    private EveningDojiStar _eveningdojistar;

    public override void Initialize()
    {
        _symbol = AddEquity("SPY", Resolution.Daily).Symbol;
        _eveningdojistar = new EveningDojiStar();
        RegisterIndicator(_symbol, _eveningdojistar, Resolution.Daily);
    }

    public override void OnData(Slice data)
    {
        if (_eveningdojistar.IsReady)
        {
            // The current value of _eveningdojistar is represented by itself (_eveningdojistar)
            // or _eveningdojistar.Current.Value
            Plot("EveningDojiStar", "eveningdojistar", _eveningdojistar);
            
        }
    }
}
class EveningDojiStarAlgorithm(QCAlgorithm):
    def Initialize(self) -> None:
        self._symbol = self.AddEquity("SPY", Resolution.Daily).Symbol
        self.eveningdojistar = EveningDojiStar()
        self.RegisterIndicator(self.symbol, self.eveningdojistar, Resolution.Daily)

    def on_data(self, slice: Slice) -> None:
        if self.eveningdojistar.IsReady:
            # The current value of self.eveningdojistar is represented by self.eveningdojistar.Current.Value
            self.plot("EveningDojiStar", "eveningdojistar", self.eveningdojistar.Current.Value)

The following reference table describes the EveningDojiStar constructor:

EveningDojiStar()1/3

            EveningDojiStar QuantConnect.Indicators.CandlestickPatterns.EveningDojiStar (
    string    name,
    *decimal  penetration
   )

Initializes a new instance of the EveningDojiStar class using the specified name.

EveningDojiStar()2/3

            EveningDojiStar QuantConnect.Indicators.CandlestickPatterns.EveningDojiStar (
    decimal  penetration
   )

Initializes a new instance of the EveningDojiStar class.

EveningDojiStar()3/3

            EveningDojiStar QuantConnect.Indicators.CandlestickPatterns.EveningDojiStar (
    
   )

Initializes a new instance of the EveningDojiStar class.

You can also see our Videos. You can also get in touch with us via Discord.

Did you find this page helpful?

Contribute to the documentation: